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Synthesis and molecular structure of solvated hydride complexes of aluminium and di-η5-cyclopentadienylyttrium

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
265
Issue
2
Identifiers
DOI: 10.1016/0022-328x(84)80065-0

Abstract

Abstract A series of hydride complexes of di-η 5-cyclopentadienyl-yttrium and -aluminium solvated by a Lewis base, viz. Cp 2YAlH 4NEt 3 (I), Cp 2YAlH 4THF (II), Cp 2YAlH 4OEt 2 (III) and (Cp 2YAlH 4) 2OEt 2 (IV), (Cp = η 5-cyclopentadienyl) was synthesized. An X-ray study of compounds I and IV was performed, yielding the coordinates of the heavy atoms. The positions of the hydrogen atoms were determined accordingly from the IR data and also by comparison with the analogous hydridohalide complexes (Cp 2YCl) 2AlH 3L. The structures of I and IV may be represented by the following formulae: [(η 5-C 5H 5) 2Y(μ 3-H)AlH 2NEt 3] 2 (I) and {[(η 5-C 5H 5) 2Y] 2(μ 3-H)}[(μ 2-H) 2AlH 2][(μ 2-H) 2AlHOEt 2] (IV).

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